December 30, 2023, the northern section of BJL17 opens, and the remaining sections of BJL16, along with Suzhou Jie station, are also opened, commencing full line operation.
The south section of BJL16 opens for trial operation and commences full line service with the north and middle section of BJL16.
The south section of Line 17, the remaining section of Line 14 and Yuyuantan Park East Gate station of Line 16 opens for trial operation.
BJMTR releases its second-generation staff uniforms, which are officially put into use since September 28.